User blog comment:Ibrahim1004/How those Tobias get so many legendaries ?/@comment-31267872-20171008144844

How is it confirmed? We've only seen two of his Pokémon, and we don't know the other four.

Also, it is pretty much impossible for them to be Dittos because after battle or something they would transform back to Ditto, and plus even if they were Dittos, Tobias would've have to SEEN Legendaries and get his Dittos to transform into them in time!